ICEfaces EE 1.8.2.GA does support WebLogic Portal 10, however, ICEfaces EE 3.3.0.GA does not. We have not seen significant enough customer demand to justify going through our internal certification process with it.
You could try it (you'll want EE 3.3.0.GA_P01) and see how it goes yourself, or if interested you could potentially sponsor us to complete the certification process and add it to the officially supported matrix going forward.
VP Product Development
ICEsoft Technologies, Inc.